The Computer History Museum in Mountain View, Calif., willl unveil a recreation of Charles Babbages 19th century mechanical digital calculator, the Difference Engine No. 2. Starting in May, many will ...

Look at your feet. (I’m going to assume you’re wearing shoes.) Do you have any idea how good or bad those shoes are for the environment? Or did you pick them for their color, comfort, or style? The ...

Building a mechanical calculator for multiplication: DIY to CNC precision! Posted: February 2, 2026 | Last updated: February 2, 2026 Watch as a frustrating math problem inspires a creative journey ...

The early HP Reverse Polish Notation calculators have a special place in the hearts of engineers and tinkerers as there are lots of projects involving them. They haven’t been produced in decades, but ...